The principles of electrosurgery

The principles of electrosurgery

Electric current is defined as the flow of charged particles through a circuit. Alternating current (AC), a type of current wherein current periodically changes direction, is solely employed in electrosurgery . The time taken to complete one positive and one negative alternation is called one cycle. Frequency , measured in Hertz (Hz), denotes the number of such cycles in 1 second; the more the cycles, the higher the frequency . Electrosurgical units (ESUs) work by converting electrical frequencies from the wall outlet (50–60 /uni00A0 Hz) to high frequencies ranging from 500 /uni00A0 000 to 3 /uni00A0 000 /uni00A0 000 /uni00A0 Hz. When current passes through a conductor at such high frequencies, energ y is con - verted to heat, which is used to cut or coagulate tissue. It is important to bear in mind that human muscle and nerves are stimulated at frequencies below 10 /uni00A0 000 /uni00A0 Hz; there - f ore, ESUs must convert electrical frequency to a much higher frequency . The principles of electrosurgery

Electric current is defined as the flow of charged particles through a circuit. Alternating current (AC), a type of current wherein current periodically changes direction, is solely employed in electrosurgery . The time taken to complete one positive and one negative alternation is called one cycle. Frequency , measured in Hertz (Hz), denotes the number of such cycles in 1 second; the more the cycles, the higher the frequency . Electrosurgical units (ESUs) work by converting electrical frequencies from the wall outlet (50–60 /uni00A0 Hz) to high frequencies ranging from 500 /uni00A0 000 to 3 /uni00A0 000 /uni00A0 000 /uni00A0 Hz. When current passes through a conductor at such high frequencies, energ y is con - verted to heat, which is used to cut or coagulate tissue. It is important to bear in mind that human muscle and nerves are stimulated at frequencies below 10 /uni00A0 000 /uni00A0 Hz; there - f ore, ESUs must convert electrical frequency to a much higher frequency . The principles of electrosurgery

Electric current is defined as the flow of charged particles through a circuit. Alternating current (AC), a type of current wherein current periodically changes direction, is solely employed in electrosurgery . The time taken to complete one positive and one negative alternation is called one cycle. Frequency , measured in Hertz (Hz), denotes the number of such cycles in 1 second; the more the cycles, the higher the frequency . Electrosurgical units (ESUs) work by converting electrical frequencies from the wall outlet (50–60 /uni00A0 Hz) to high frequencies ranging from 500 /uni00A0 000 to 3 /uni00A0 000 /uni00A0 000 /uni00A0 Hz. When current passes through a conductor at such high frequencies, energ y is con - verted to heat, which is used to cut or coagulate tissue. It is important to bear in mind that human muscle and nerves are stimulated at frequencies below 10 /uni00A0 000 /uni00A0 Hz; there - f ore, ESUs must convert electrical frequency to a much higher frequency .